At a media conference this evening he described the recent escalation in bikie violence in south-east Queensland as "intolerable" and the worst the state has ever seen.

"If, as we believe now, that the woman who was shot is an innocent bystander, completely innocent victim, I'm not aware in the past in Queensland where that's ever happened," he said.

"In a public place, with the use of a firearm, and potentially an innocent member of the public being shot, and other members of the public being terrorised and potentially put at risk, there is hardly a worst-case scenario than we've seen this afternoon."

Mr Atkinson says police will do everything possible to pursue those responsible.